Macerator and juice extractor



Sept. 16, 1941. R. EDRAcHl-:NBERG 2,255,764

' MCERATOR AND JUICE EXTRACTOR 'Filed Nov. 1s, 1939 @@5/ Q3@ 'l f5 ATTORN Y.

Patented Sept. 16, 1941 UNITED STATES PATENT OFFICE f MAcERA'roR AND `I Urcri Exrmc'ron Richard E. Drachenberg, Grosse Pointe, Mich. Application November 13,v 1939, Serial No. 304,201

7 Claims. (Cl. 146-3) My invention relates to a macerator and juice extractor adapted for use in macerating vegetables, fruits, and the like, and extracting juice from the macerated pulp. This invention constitutes a continuation in part of my co-pending ing a cover with a macerating member attached applications, Serial ,No. 143,548 filed May 19, and rotatable relatively thereto, while limited in 1937 and Serial No. 268,670 led April 19, 1939. axial movementlrelatively thereto.

In machines of this type the fruit or vegetable Another object of the invention is the provito be operated upon is brought into contact with sion of a machine of this type which will be a movable and preferably rotating macerating 10 simple in structure, durable, compact and highly -member in such a manner that the macerating' f eicientinuse. v l member will engage and macerate or reduce to a Other objects will appear hereinafter. pulp the fruit or vegetable. The material is fed In the specification 'and drawing I have set onto the macerating member through a chute forth and described the lpreferred embodiment which is stationary and which overlies a part of of the invention although it Will appeal. from the area defined by the macerating member when the description, to one skilled in the art, that it is rotating. Thus the macerating member will various modifications and changes may be made engage the fruit or vegetable projectingl beyond in the invention without departing from the, the end of the chute and sever this part from spirit,l function and results thereof and it is my the part still contained within the chute. The intention that such modifications shall be emmaterial so engaged and severed will be thoroughbraced'herein. 1y macerated and carried clear of the chuteby Fig. 1 is a side .illustration of the invention the macerating member. This pulp is then prowith parts broken away and parts shown in secjected from the macerating member into a rotattion. y ing, perforated strainer in which the macerating Fig. 2 is a fragmentary view, slightly enlarged, member is positioned. The Arotating strainer taken on line 2 2 'of Fig. l. serves, through centrifugal action, to separate the Fig. 3.- the fragmentary view, slightly enlarged, juice from the pulp, the juice passing into the with parts shown in side `elevation and parts enclosing receptacle from which it is led oi by broken away, showing the connection means used any suitable means. inthe invention.

In machines of this type yit is customary to use Fig. 4 is a fragmentary sectional view takeny a high speed motor to drive the macerator. It is 0n line 4-4 of Fig. 3. customary also to use a cover for the venclos- In the drawing I have illustrated the inven-' ing receptacle, on which cover the chute is mounttion as embodying a standard 8 in which is'suited. After use of the machine for a period of time ably mounted an electric motor I0 controlled by it is necessary that the cover be removed so that the switch I I. Supported on the standard 9 is the accumulated pulp, from which the juice has a housing or enclosing receptacle I2 having an been extracted, can be removed. Experience has| outlet spout I3 at one side thereof and provided shown that in use of a machine of this type, in its base I4 with a central opening I5 surroundwhen the motor is shut off and the cover removed, 40 ed by the inwardly directed yneck I6. the macerating member will continue to rotate for The motor shaft I1 'projects upwardly and some time at high speeds. Consequently,it beengaging over the upper end of the shaft I'I comes possible for the person to place his hand is a hub I8 projecting downwardly from the plate on the4 rotating macerator after the cover has I9. This hub is provided with a pair of peripheral been removed. To avoid this I have provided, grooves 20, in each of which is positioned a split described herein, a structure so arranged that resilient 'band having an inwardly turned end when the cover is removed the macerating mem- 22 projected through an opening '23 formed in ber is also removed or moved out of engagement the hub IB and engaging in a cut away portion with the rotating member so that the macerating 24 of the shaft. I 1 so as to engage against the member will not be rotated after the `cover is shoulder 25 and'eiect a rotation of the plate removed. I 9 in unisonwith the shaft I'I.

Another object of the invention is the provi- The plate vI9 lis secured by weldingor in any sion of a cover having a rotatable member thereother suitable manner to the base portion 26 on adapted, when the cover is in closing posiof a receptacle having a perforated wall 21 and tion, for interengaging with a rotating driving member which will serve to rotate the macerating member after the cover is in position.

Another object of the invention is the provision in a machine of this type of a' structure havprovided at its upper end with an inwardly pro- 2 jecting abutment flange 29. As shown in Fig. 1,

a portion of the lplate I9 projects through an opening 29 formed in the base 26. By forming lthis opening with nat sides so that the opening l forms a square or other type of polygon,

and by providing the portion of the plate I9 which exltends into the opening with ilat faces, the engagement of such portion in the opening will 1 facilitate the rotation of the base 26.

Formed in the upper face of plate I9 isa recess 30 which is ilat facedand provided with a 1 central flat faced pocket 3l. This plate I9 serves Y as anattachment for the receptacleembodying the base 26 and forms a part of the bottom l thereof. Plate I9 also serves as an actuating member for effecting the rotation of the macerat- 1 ingmeans. The macerating means comprises a disk 32.- This disk 32 isprovided with slots 33 in which engage plates 34 formed T-s'haped in i cross section, the arms 3i of the T resting against @the under face of the plate 32 and secured thereto by welding or in any other suitable man- .1 ner. It is believed obvious that if desired, the plates may be inserted in the slots 33 by a press I iit. l plates are provided with a straight upper edge In the construction shown some of these and some of them are serrated to provide the teeth 36. Both types of plates project upwardly beyond the upper face 31 of, the plate 32. The

upper face 31 is also provided with sharp-edged Il 1. In a juice extractor of the I, 'pockets`39 which serve to co-operate with the plates in effecting the macerating.

Secured to the under face of the `plate 32, by

j when the plate I9 is rotated, the vplate 32 will also be rotated.

The housing on receptacle I2 is provided with a cover 42 which is secured in position by means of the spring clasp 43. Supported by the cover v42, and preferably formed integral therewith, is

downwardly from the lower end of the chutel are teeth 45 which are adapted to interlace with` the teeth 36- when the plate 32 rotated. .Ex-v

tending outwardly fromthe lower or inner end of chute43 and having its lower face 46 flush l 'with the end face of the chute is a defiecting plate 41 which serves to prevent the macerated motor I9 will eiect a rotation of the receptacle,

having the perforated wall and also a rotation of the plate 32. This rotation will be from right to left in Fig. l so that the blades will pass across the open end of the chute 43 and macerate material projected from the end of the chute, carrying this severed, macerated material into engagement with the teeth- 45 where further maceration will take place. Plate 32 will carry this macerated material laround and propelp the same outwardly by centrifugal action, into the receptacle having the perforated wall. The solid matter will be retained in the recep-l tacle while the juices will .beforcedthrough the openings in the wall, to be deposited in the housing or receptacle I2.

When the cover 42 is removed, the plate 32 will be removed with it so that no macerating means are left exposed in the perforating receptacle after the 'cover has been removed.

-With the construction of this type the various advantages sought will be obtained, as well as others, which will appear from the mechanism described. and the disadvantages and undesirable features referred to are obviated.

l means of screws 39. is a guide plate 49 having a l i boss 4I projecting outwardly, centrally thereof, i from one side thereof. This boss is of a size to I snugly ilt in the pocket 3l, and is shaped in cross section to conform to the shape of the .i pocket 3|. Likewise, the plate 49 is of a size and shape' to snugly iit in the recess 39 so that 'The house or receptacle I2 is secured in position on the standard 9 by means of 4a set screw WhatIclaimasnew is:

ass described, a rotatable receptacle having perforations formed in the side wall thereof; a base on said receptacle; a means for rotating said receptacle: connecting means attached to said base for connecting the same to said rotating means; a housing for enclosing said receptacle for reception of juices, issuing therefrom; a cover member on -said housing; a rotatable macerating member carried by said cover; and interengaging means on said macerating member and said base coacting,when said cover is in covering position,

pulp from being thrown upwardly after it has been carried clear of thev chute 43.

Projecting upwardly from the plate 49, centrally thereof, and extending throughthe plate 32, at the center thereof, is a stub shaft 49 having a reduced portion 49 projecting through an op'ening 59 formed in the deilecting plate 41,'

l It will be noted that there is a clearance between the reduced portion 49 andthe opening 59. It

will also be notedl that this opening 59 is smaller.

than the stub shaft 48. 'Ihe washer 6I isv secured on the vreduced portion or stem 49 by parts 49 and 4I will have fitted in the recess to effect a rotation of said macerating member in unison with said base.

2. In a juice extractor of the class described, a rotatable receptacle having perforations formed in the side wall thereof; a base on said receptacle means for rotating said receptacle on the axis of said base; connecting means engageable with said base for connecting the same to saidrotating means; a housing for Venclosing said receptacle for reception of juices issuing therefrom; a cover member on said housing and movable to operative' and inoperative position; a rotatable macerating member carried by said cover; intery engaging means onsaid macerating member and said base coacting, when said covervis in operative position to effect a'rotation of said macerating member in unison with said base.

3.'I.n a juice extractor of the class described, a rotatable perforated receptacle having a bottom; means for rotating saidreceptacle about the axis of its bottom; a housing enclosing said receptacle for the reception of juices issuing therefrom: a stationary chute supported on said housing and projecting inwardly of said receptacle and terminating at its inner end in spaced relation to said bottom; a macerating member carried by said chuteand rotatable relatively thereto and positioned between-the end of said chute andvsaid bottom; and means for rotating said maceratingtmemberin unison with said 4. In a juice extractor of the class described,

n and pocket al so that an operation of -the 7 5 being rotatable on the axis of its bottom; means i'or rotating said receptacle; a housing enclosing said receptacle and adapted for reception of juices issuingV therefrom; a cover vmember supported on said housing and movable relatively thereto to operative and inoperative position; a feeding chute carried Iby said 'cover member and projectable at one end into said receptacle upon movement of said cover member to operative position, said chute terminating at'its inner end in spaced relation to said bottom; a macerating member positioned between said bottom and the inner end of said chute; means for rotating said macerating/ member in unison with said bottom; and means rotatably connecting said macerating member to said cover member. p 5. In a Juice extractor of the class described,

rotatable perforated receptacle having a bottom; means for rotating said receptacle about the axis of its bottom: a housing for enclosing said receptacle for reception of juices issuing therefrom; connecting 'means for connecting said bottom to said rotating means, said connecting means having a fiat-faced recess opening into said receptacle; a macerating member; means carried by v necting said macerating member to said cover member. l 6. In a Juice extractor oithe class described, a

perforated receptacle having a bottom and rotatable about the axis oi its bottom: means for rotating said receptacle; a housing for enclosing said receptacle for the reception of juices issu- .ing therefrom; a stationary chute supported kon said housing and extending at one end inwardly of said receptacle eccentric of said bottom;.a macerating member positioned between the in-v ner end of said chute and said bottom; means for rotating said macerating member in unison with said receptacle; and means extending eccentrically of said `receptacle for rotatably connecting said macerating member to said chute.

7. In a juice extractor oi' the class described,a rotatable perforated receptacle having a bottom; means for rotating said receptacle; a housing for lenclosing said receptacle for the reception .of

Juices issuing therefrom: a cover member supported on -said housing; a stationary chute mounted on said cover member and projecting at one end inwardly of said receptacle and terminating inspaced relation to said bottom eccentric thereof; a macerating member positioned between said bottom and said end of said chute; means for rotating said macerating member in unison with said bottom; and means located centrally o! said bottom ior connecting said macerating member to said chute in rotatable relation thereto.

, RICHARD E. DRACHENBERG. 

